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Finding the Fourth Proportional to 11,951.87, 16,493.24 and 6,916.91

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Solution

The fourth proportional to 11,951.87, 16,493.24 and 6,916.91 is: 9,545.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,951.87 : 16,493.24 = 6,916.91 : x
  2. Step 2: Convert to fraction form
    11,951.87/16,493.24 = 6,916.91/x
  3. Step 3: Cross multiply
    11,951.87x = 16,493.24 × 6,916.91
  4. Step 4: Simplify right side
    11,951.87x = 114,082,222.10
  5. Step 5: Solve for x
    x = 114,082,222.10/11,951.87
  6. Step 6: Final answer
    x = 9,545.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.